need c# code for sending mails to many using gmail in Desktop

Question

0.00/5 (No votes)

See more:

Need source code to send mails to many where am retrieving the sender address seperated by a comma from a text box

[edit] It shows smtp authentication needed [/edit]

C#

public partial class Mail : Form
    {
        public string s;
        public SmtpClient client = new SmtpClient();
        public MailMessage msg = new MailMessage();
        String[] email = new String[30];
        int flag = 0;
        public System.Net.NetworkCredential smtpcrede = new System.Net.NetworkCredential("username", "Password");


//Sending mail

 private void SendEmail(string sendTo, string sendFrom, string subject, string body)
        {
            try
            {
                client.Host = "smtp.gmail.com";
                client.Port = 587;
                client.UseDefaultCredentials = false;
                client.Credentials = smtpcrede;
                client.EnableSsl = true;
                MailAddress to = new MailAddress(sendTo);
                MailAddress from = new MailAddress(sendFrom);
                msg.IsBodyHtml = true;

                msg.Subject = subject;
                msg.Body = body;
                msg.From = from;
                string[] addrs = sendTo.Split(',');
                foreach (string addr in addrs)
                {
                    MailAddress to = new MailAddress(addr);
                    msg.To.Add(to);
                }
              
                client.Send(msg);

            }


//send email 

    private void btn_Send_Click(object sender, EventArgs e)
        {
            
           String mailmsg = "text1<br/>"+rich_Msg.Text+"<br/>text2";
           

              for (int i = 0; i < email.Length; i++)
             {
                 SendEmail(email[i], "from@mail.com", txt_Subj.Text,mailmsg);
                // Console.WriteLine(email[i], "from@mail.com", txt_Subj.Text, rich_Msg.Text);

             }

Posted 7-Jul-13 19:35pm

MohRizwan

Updated 7-Jul-13 22:43pm

Sushil Mate

v3

Add a Solution

Comments

Sushil Mate 8-Jul-13 1:52am

What you have done apart from posting question here?

MohRizwan 8-Jul-13 1:55am

i have code but its not functioning properly ...

Sushil Mate 8-Jul-13 1:57am

Great, Can you put here? & point out exactly where you are getting error/exception? your question will get more appreciation/respect if you show some code/efforts instead of asking the code.

MohRizwan 8-Jul-13 2:57am

/* here is my code mr. sushil and it shows smtp authentication needed */

public partial class Mail : Form
{
public string s;
public SmtpClient client = new SmtpClient();
public MailMessage msg = new MailMessage();
String[] email = new String[30];
int flag = 0;
public System.Net.NetworkCredential smtpcrede = new System.Net.NetworkCredential("username", "Password");

//Sending mail

private void SendEmail(string sendTo, string sendFrom, string subject, string body)
{
try
{
client.Host = "smtp.gmail.com";
client.Port = 587;
client.UseDefaultCredentials = false;
client.Credentials = smtpcrede;
client.EnableSsl = true;
MailAddress to = new MailAddress(sendTo);
MailAddress from = new MailAddress(sendFrom);
msg.IsBodyHtml = true;

msg.Subject = subject;
msg.Body = body;
msg.From = from;
string[] addrs = sendTo.Split(',');
foreach (string addr in addrs)
{
MailAddress to = new MailAddress(addr);
msg.To.Add(to);
}

client.Send(msg);

}

//send email

private void btn_Send_Click(object sender, EventArgs e)
{

String mailmsg = "text1<br/>"+rich_Msg.Text+"<br/>text2";

for (int i = 0; i < email.Length; i++)
{
SendEmail(email[i], "from@mail.com", txt_Subj.Text,mailmsg);
// Console.WriteLine(email[i], "from@mail.com", txt_Subj.Text, rich_Msg.Text);

}

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rajan Maheshwari · Answer 1 · 2013-07-07T20:42:00

C#

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Net;
using System.Net.Mail;

public partial class _Default : System.Web.UI.Page 
{
    string type;
    protected void Page_Load(object sender, EventArgs e)
    {
        TextBox1.Enabled = false;
        TextBox2.Enabled = false;
        TextBox3.Enabled = false;
        TextBox4.Enabled = false;
        TextBox5.Enabled = false;

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        try
        {
            if (DropDownList1.SelectedValue == "gmail")
            {
                type = "smtp.gmail.com";
            }
            else
            {
                type = "smtp.live.com";

            }
            MailMessage msg = new MailMessage();
            msg.From = new MailAddress(TextBox1.Text);
            msg.To.Add(TextBox2.Text);
            msg.Subject = TextBox4.Text;
            msg.Body = TextBox3.Text;
            SmtpClient sc = new SmtpClient(type);
            sc.Port = 25;
            sc.Credentials = new NetworkCredential(TextBox1.Text, TextBox5.Text);
            sc.EnableSsl = true;
            sc.Send(msg);
            Response.Write("Mail sent");

        }
        catch (Exception e1)
        {
            Response.Write(e1.Message);
        }
    }
    protected void Button2_Click(object sender, EventArgs e)
    {

       
        TextBox1.Enabled = true;
        TextBox2.Enabled = true;
        TextBox3.Enabled = true;
        TextBox4.Enabled = true;
        TextBox5.Enabled = true;
    }
}

If u want to send to multiple people..just add a loop in the MailMessage section upto Response.Write("Mail sent");

Accept as answer if it solves your problem